NS001 TMS: Site-Average Radiances for FIFE Ground Sites

During the FIFE IFCs, the NS001 sensor collected data for a small number of observation dates per site. This dataset contains instrument-corrected spectral radiances for eight bands, plus geographic location and viewing angles for 39 ground measurement sites. It is intended for canopy reflectance modeling, with radiance values corrected using atmospheric aerosol and gaseous absorption profiles where available.

Use Cases

• Canopy reflectance modeling studies based on multi-angle spectral radiance observations.
• Validation of atmospheric correction algorithms using the applied Fraser et al. (1989) method.
• Analysis of surface temperature and thermal data corrected with the Lowtran7 atmospheric model.
• Spatial analysis of land surface properties across 39 specific FIFE ground measurement sites.

Strengths

• Includes data for 39 distinct ground measurement sites, providing spatial coverage.
• Contains multi-angle observations from the flight grid pattern for each site.
• Radiances are corrected using measured atmospheric profiles, enhancing accuracy.

Limitations

• Metadata completeness is low: column names, row counts, and exact temporal coverage are unknown.
• Conflicting last-updated dates exist between platforms (1989 vs. 2026), indicating potential metadata errors.
• The dataset contains only a small number of observation dates per site, limiting temporal analysis.

Provenance

Source

National Aeronautics and Space Administration (NASA), FIFE Information System (FIS).

Collection Method

Extracted from level-1 NS001-TMS products from selected flights during FIFE IFCs.

Time Range

During the FIFE IFCs (exact years not specified).

Freshness

Last updated date is conflicting: 1989-08-11 on NASA Earthdata vs. 2026-04-09 on Data.gov.

Geography

39 FIFE ground measurement sites (specific locations not detailed).